Showing 2,181 - 2,200 results of 3,115 for search '"mathematical model"', query time: 0.08s Refine Results
  1. 2181

    The Research on Strain-Softening Characteristics and Local Fracture Law of Deep Granite Roadway by Chuang Sun, Yunhe Ao, Laigui Wang

    Published 2020-01-01
    “…A strain-softening model was developed based on plasticity theory for granite which took into account the nonlinear dilatancy angle and confining pressure. A mathematical model was developed using FLAC3D as platform. …”
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  2. 2182

    Fine design modeling technology and intelligent implementation of through-layer drilling by Pei QIN, Changbao LIAN, Xiyuan LI, Juzheng SUN, Yuanmin LUO

    Published 2025-01-01
    “…In order to ensure the safety of coal mine production and further improve the ability of coal mine gas control, based on the theory of gas flow in coal seam, starting with the analysis of effective extraction radius of gas, a mathematical model is established to determine the key indexes of fine design layout control of through-layer holes. …”
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  3. 2183

    The Piston Ring-Cylinder Bore Interface Leakage of Bent-Axis Piston Pumps Based on Elastohydrodynamic Lubrication and Rotation Speed by Lvjun Qing, Lichen Gu, Yan Wang, Wei Xue, Zhufeng Lei

    Published 2021-01-01
    “…First, the proposed model includes a minimum film thickness model of PRCB to analyze the dynamic change of oil film of PRCB when subject to the elastohydrodynamic lubrication. After that, a mathematical model of PRCB is induced by combining the minimum film thickness model with the flow equation, which helps produce the effects of the oil film on the leakage of PRCB. …”
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  4. 2184

    Improved Adaptive PI-like Fuzzy Control Strategy of Permanent Magnet Synchronous Motor by Wenshao Bu, Shihao Guo, Zongang Fan, Jinwei Li

    Published 2025-01-01
    “…The fuzzy controller is a popular choice for permanent magnet synchronous motor (PMSM) control systems because of its advantages, such as straightforward design, and no reliance on the precise mathematical model of the motor. But the existing pure PI-like fuzzy control strategy still has some disadvantages, such as poor adaptive ability and large overshooting. …”
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  5. 2185

    Numerical investigation of coal pillar damage mechanisms for various width-to-height ratios by Xuanhui Wang, Ze Xia, Qiangling Yao, Xuehua Li, Qiang Xu, Liu Zhu

    Published 2025-01-01
    “…In order to analyze the features of dynamical evolution of vertical stress distribution and failure zone during loading, a meticulously validated roof–coal–floor composite mathematical model was established.The energy evolution for coal pillars under diverse w/h ratios was analyzed, and the failure energy ratio and elastic strain energy release rate were introduced to evaluate the failure severity. …”
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  6. 2186

    Dynamic Reactive Power Optimization Strategy for AC/DC Hybrid Power Grid Considering Different Wind Power Penetration Levels by Nan Feng, Yuyao Feng, Yun Su, Yajun Zhang, Tao Niu

    Published 2024-01-01
    “…Firstly, a detailed mathematical model of the AC/DC hybrid system is established. …”
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  7. 2187

    Experimental Study on Expansion Characteristics of Core-Shell and Polymeric Microspheres by Pengxiang Diwu, Baoyi Jiang, Jirui Hou, Zhenjiang You, Jia Wang, Liangliang Sun, Ye Ju, Yunbao Zhang, Tongjing Liu

    Published 2018-01-01
    “…Based on the experimental results, the core-shell microsphere is suitable for injection in the early stage to block the near-wellbore zone, and the polymeric microsphere is suitable for subsequent injection to block the formation away from the well. A simple mathematical model is proposed for size evolution of the polymeric and core-shell microspheres.…”
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  8. 2188

    The impact of an imperfect vaccine and pap cytologyscreening on the transmission of human papillomavirus and occurrenceof associated cervical dysplasia and cancer by Tufail Malik, Jody Reimer, Abba Gumel, Elamin H. Elbasha, Salaheddin Mahmud

    Published 2013-05-01
    “…A mathematical model for the natural history of human papillomavirus(HPV) is designed and used to assess the impact of a hypotheticalanti-HPV vaccine and Pap cytology screening on the transmissiondynamics of HPV in a population. …”
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  9. 2189

    Designing a Dynamic and Sustainable Cellular Manufacturing System by Considering the Amount of Energy Consumption and Manpower in Production Planning by Nader Ghanei, Gholam Reza Esmaeilian, Amir Saman Kheirkhah

    Published 2024-12-01
    “…In this article, a new multi-objective mathematical model for creating a sustainable cellular Manufacturing system is presented according to the mentioned items in order to minimize the production costs in the system in addition to optimizing the environmental effects of the Manufacturing system. …”
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  10. 2190
  11. 2191

    Predicting oxytocin binding dynamics in receptor genetic variants through computational modeling by Preeti Dubey, Yingye Fang, K. Lionel Tukei, Shobhan Kuila, Xinming Liu, Annika Sahota, Antonina I. Frolova, Erin L. Reinl, Manasi Malik, Sarah K. England, Princess I. Imoukhuede

    Published 2025-02-01
    “…To address this, we developed a mathematical model examining the effects of five OXT receptor (OXTR) variants (V45L, P108A, L206V, V281M, and E339K) on OXT–OXTR binding dynamics in human embryonic kidney cells (HEK293T) and myometrial smooth muscle cells. …”
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  12. 2192

    Modeling of Throughput in Production Lines Using Response Surface Methodology and Artificial Neural Networks by Federico Nuñez-Piña, Joselito Medina-Marin, Juan Carlos Seck-Tuoh-Mora, Norberto Hernandez-Romero, Eva Selene Hernandez-Gress

    Published 2018-01-01
    “…Response surface methodology and artificial neural network were used to develop predictive models to find optimal throughput values. 360 production rate values for different number of buffer slots and workstations were used to obtain a fourth-order mathematical model and four hidden layers’ artificial neural network. …”
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  13. 2193

    A model for transmission of partial resistance to anti-malarial drugs by Hengki Tasman, Edy Soewono, Kuntjoro Adji Sidarto, Din Syafruddin, William Oscar Rogers

    Published 2009-05-01
    “…In this paper we formulate a mathematical model ofthe spread of anti-malarial drug resistance in the population.The model is suitable for malarial situations in developingcountries. …”
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  14. 2194

    Dynamic Characteristics of Offshore Natural Gas Hydrate Dissociation by Depressurization in Marine Sediments by Xinfu Liu, Chunhua Liu, Jianjun Wu

    Published 2019-01-01
    “…Dynamic characteristics of offshore natural gas hydrate (NGH) dissociation will provide the theoretical basis to analyze technical issues of oceanic hydrate exploitation. A mathematical model is developed to simulate offshore NGH dissociation by depressurization in marine sediments. …”
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  15. 2195

    Hybrid Decision-Making Frameworks under Complex Spherical Fuzzy N-Soft Sets by Muhammad Akram, Maria Shabir, Ahmad N. Al-Kenani, José Carlos R. Alcantud

    Published 2021-01-01
    “…As an illustration, we design a mathematical model for the selection of the best physiotherapist doctor of Mayo hospital, Lahore. …”
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  16. 2196

    Rectangular Glass Optical Fiber for Transmitting Sunlight in a Hybrid Concentrator Photovoltaic and Daylighting System by Afshin Aslian, Kok-Keong Chong, Seyed Hassan Tavassoli, Chin-Joo Tan, Omid Badkoobe Hazave

    Published 2020-01-01
    “…The experiment results on the relative transmission in different incident angles for both round optical fibers and RGOFs have validated both the simulation and the mathematical modelling. The beam profile of our fabricated RGOF has also been measured via our laboratory facility. …”
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  17. 2197

    Renovation Measures for Reduction of Primary Energy Consumption and CO2 Emissions of Hospital Building by Džana Kadrić, Rejhana Blažević, Hadis Bajrić, Adna Peco, Edin Kadrić

    Published 2025-01-01
    “…The main goal of this paper is to develop a mathematical model for establishing relationship between primary energy consumption and CO2 emissions (responses), and the three renovation measures (factors). …”
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  18. 2198

    Model validation for a noninvasive arterial stenosis detection problem by H. Thomas Banks, Shuhua Hu, Zackary R. Kenz, Carola Kruse, Simon Shaw, John Whiteman, Mark P. Brewin, Stephen E. Greenwald, Malcolm J. Birch

    Published 2013-12-01
    “…In order to develop this methodology further, we use one-dimensional shear wave experimental data from novel acoustic phantoms to validate a corresponding viscoelastic mathematical model. We estimate model parameters which give a good fit (in a sense to be precisely defined) to the experimental data, and use asymptotic error theory to provide confidence intervals for parameter estimates. …”
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  19. 2199

    The surface of non-linear rotation by K. L. Panchuk, T. M. Myasoyedova

    Published 2023-11-01
    “…The paper considers a geometric scheme, a mathematical model and an algorithm for shaping a non-linear rotation surface. …”
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  20. 2200

    Managing agricultural water use in the Western United States: A search for efficient climate adaptation institutions by Frank A. Ward, Nicholas A. Potter, R. Aaron Hrozencik

    Published 2025-03-01
    “…Department of Agriculture data on irrigation water use patterns in the central part of the Rio Grande Basin of the American Southwest to support formulation of a mathematical model predicting water use patterns to assess impacts on farm income associated with a range of water shortages and water trading arrangements for adapting to these shortages. …”
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